重點講解：
1. middle ages
（歐洲歷史上的）中世紀（指公元476年羅馬帝國滅亡至公元1500年左右這段時期，尤指這段時期的后半部分）；
eg. The death of King Richard III in1485 rang down the curtain on the Middle Ages.
1485年理查德三世國王的去世標志著中世紀的結束D#Ux+X]N5iVY#hi9n~。
eg. In the Middle Ages, philosophy and theology were inextricable.
在中世紀，哲學與神學是不分的b1Ww9!HSFB]p-V1sPXj。
2. used to do sth.
過去常常做某事；
eg. I used to live in London.
我曾經在倫敦居住過!C+FlbYtyFjK。
eg. Moslem women used to veil their faces before going into public.
信奉伊斯蘭教的婦女出門之前往往用面紗把臉遮起來||OXDmj=eI))JiE。
3. be famous for
從……聞名；著稱；
eg. Switzerland is famous for its watchmaking and beautiful scenery.
瑞士以制表業(yè)和美麗的風景而聞名CW6-QLf!pIg%!。
eg. David is famous for his billiards technic.
大衛(wèi)因他的臺球技術而出名qXX-BggUcuj2k#kY7W。
4. be known for
以…聞名的；
eg. She was known for the quickness of her wit.
她以頭腦靈活見稱bQ9W^)2t7^b&c(K。
eg. It is known for its handicraft products.
這地方因出產手工藝品而聞名q!m1+Rk=]4。